Efficiency of Power Application of Pulp and Paper Production Waste in E-75-3.9-440 DFT and KM-75-40M Fluidized Bed Boilers

The study investigated the efficiency of two fluidized bed boiler units E-75-3.9-440 DFT and KM-75-40M installed at thermal power plant 3 of Arkhangelsk Pulp and Paper Mill. Energy studies were conducted at the steady-state thermal mode of the boiler units. The load, steam pressure, superheat temper...

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Bibliographic Details
Published in:Power technology and engineering Vol. 58; no. 5; pp. 816 - 823
Main Authors: Terekhin, A. P., Maryandyshev, P. A., Briard, A.
Format: Journal Article
Language:English
Published: New York Springer US 01.01.2025
Springer Nature B.V
Subjects:
Bark
Boilers
Calorific value
Combustion
Electrical Machines and Networks
Energy
Energy Systems
Feedwater
Fluidized bed boilers
Fluidized beds
Foundations
Fuel mixtures
Geoengineering
Hydraulics
Moisture content
Operating temperature
Power Electronics
Power Plants
Pulp & paper mills
Renewable and Green Energy
Sewage sludge
Sludge
Thermal power plants
bark and wood waste
sewage sludge
energy study
fluidized bed
energy efficiency
ISSN:1570-145X, 1570-1468
Online Access:Get full text
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Summary:The study investigated the efficiency of two fluidized bed boiler units E-75-3.9-440 DFT and KM-75-40M installed at thermal power plant 3 of Arkhangelsk Pulp and Paper Mill. Energy studies were conducted at the steady-state thermal mode of the boiler units. The load, steam pressure, superheat temperature, excess air coefficient, feedwater temperature and its supply to the boiler were maintained approximately constant. Two tests were conducted on the E-75-3.9-440 DFT and KM-75-40M boiler units, namely during combustion of a fuel mixture of sewage sludge and bark and wood waste of coniferous wood and during combustion of a fuel mixture of sewage sludge and bark and wood waste of deciduous wood. The results of the studies revealed that the E-75-3.9-440 DFT boiler unit, designed for combustion of a mixture of bark, wood and sewage sludge waste, ensures their efficient combustion even with a decrease in the calorific value of bark and wood waste and sewage sludge due to high moisture content. The examination of the KM-75-40M boiler unit showed that burning deciduous bark and sludge requires an increase in the proportion of recirculation gases in the primary air to ensure the operating temperature of the fluidized bed.
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ISSN:1570-145X
1570-1468
DOI:10.1007/s10749-025-01887-2